Ztiany
5 years ago
parent
8261c7af25
commit
115715f2f5
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package com.android.base.widget.text; |
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import android.annotation.SuppressLint; |
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import android.content.Context; |
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import android.content.res.TypedArray; |
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import android.graphics.Bitmap; |
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import android.graphics.BitmapFactory; |
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import android.graphics.Canvas; |
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import android.graphics.Paint; |
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import android.graphics.drawable.BitmapDrawable; |
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import android.text.Editable; |
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import android.text.TextUtils; |
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import android.text.TextWatcher; |
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import android.text.method.PasswordTransformationMethod; |
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import android.util.AttributeSet; |
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import android.view.MotionEvent; |
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import android.view.inputmethod.EditorInfo; |
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import com.android.base.R; |
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import com.android.base.utils.android.views.Sizes; |
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import org.jetbrains.annotations.NotNull; |
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import androidx.appcompat.widget.AppCompatEditText; |
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import timber.log.Timber; |
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public class ClearableEditText extends AppCompatEditText { |
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private Bitmap mClearBitmap; |
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private Bitmap mPasswordVisibleBitmap; |
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private Bitmap mPasswordInvisibleBitmap; |
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private Paint mBitmapPaint; |
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/** |
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* the edge offset of first bitmap |
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*/ |
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private int mBitmapRightEdgeOffset; |
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/** |
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* the margin between clearing bitmap and password bitmap |
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*/ |
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private int mBitmapMargin; |
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private int mInitPaddingRight; |
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private boolean mPasswordVisibleEnable; |
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private boolean mContentClearableEnable; |
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private static final int DOWN_POSITION_NONE = 1; |
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private static final int DOWN_POSITION_CLEAR = 2; |
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private static final int DOWN_POSITION_PASSWORD = 3; |
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private int mDownPosition = DOWN_POSITION_NONE; |
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private PasswordTransformationMethod mVisibleTransformation; |
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public ClearableEditText(Context context) { |
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super(context); |
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init(context, null); |
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} |
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public ClearableEditText(Context context, AttributeSet attrs) { |
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super(context, attrs); |
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init(context, attrs); |
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} |
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public ClearableEditText(Context context, AttributeSet attrs, int defStyle) { |
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super(context, attrs, defStyle); |
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init(context, attrs); |
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} |
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private void init(Context context, AttributeSet attrs) { |
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TypedArray typedArray = null; |
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try { |
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typedArray = context.obtainStyledAttributes(attrs, R.styleable.ClearableEditText); |
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BitmapDrawable clearDrawable = (BitmapDrawable) typedArray.getDrawable(R.styleable.ClearableEditText_cet_clear_drawable); |
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if (clearDrawable != null) { |
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mClearBitmap = clearDrawable.getBitmap(); |
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} else { |
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mClearBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.base_icon_clear); |
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} |
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BitmapDrawable passwordVisibleDrawable = (BitmapDrawable) typedArray.getDrawable(R.styleable.ClearableEditText_cet_password_seeing_drawable); |
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if (passwordVisibleDrawable != null) { |
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mPasswordVisibleBitmap = passwordVisibleDrawable.getBitmap(); |
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} |
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BitmapDrawable passwordInvisibleDrawable = (BitmapDrawable) typedArray.getDrawable(R.styleable.ClearableEditText_cet_password_closing_drawable); |
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if (passwordInvisibleDrawable != null) { |
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mPasswordInvisibleBitmap = passwordInvisibleDrawable.getBitmap(); |
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} |
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mPasswordVisibleEnable = typedArray.getBoolean(R.styleable.ClearableEditText_cet_enable_password_visibility_toggle, false) && isInputTypePassword(); |
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mContentClearableEnable = typedArray.getBoolean(R.styleable.ClearableEditText_cet_enable_content_clearable, true); |
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} finally { |
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if (typedArray != null) { |
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typedArray.recycle(); |
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} |
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} |
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mInitPaddingRight = getPaddingRight(); |
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mBitmapRightEdgeOffset = Sizes.dip(5); |
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mBitmapMargin = Sizes.dip(15); |
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mBitmapPaint = new Paint(); |
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mBitmapPaint.setAntiAlias(true); |
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adjustPadding(); |
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addTextChangedListener(newWatcher()); |
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} |
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private Bitmap getPasswordVisibleBitmap() { |
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if (mPasswordVisibleBitmap == null) { |
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mPasswordVisibleBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.base_icon_password_open); |
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} |
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return mPasswordVisibleBitmap; |
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} |
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private Bitmap getPasswordInvisibleBitmap() { |
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if (mPasswordInvisibleBitmap == null) { |
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mPasswordInvisibleBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.base_icon_password_close); |
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} |
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return mPasswordInvisibleBitmap; |
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} |
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private Bitmap getPasswordBitmap() { |
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if (isPasswordSeeable()) { |
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return getPasswordInvisibleBitmap(); |
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} else { |
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return getPasswordVisibleBitmap(); |
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} |
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} |
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private PasswordTransformationMethod getVisibleTransformation() { |
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if (mVisibleTransformation == null) { |
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mVisibleTransformation = new PasswordTransformationMethod(); |
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} |
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return mVisibleTransformation; |
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} |
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private void adjustPadding() { |
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boolean hasClearBitmap = mContentClearableEnable && !TextUtils.isEmpty(getTextValue()); |
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int rightPadding; |
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if (mPasswordVisibleEnable) { |
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rightPadding = mInitPaddingRight + getPasswordBitmap().getWidth() + mBitmapRightEdgeOffset; |
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if (hasClearBitmap) { |
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rightPadding += (mBitmapMargin + mClearBitmap.getWidth()); |
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} |
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} else if (hasClearBitmap) { |
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rightPadding = mInitPaddingRight + mClearBitmap.getWidth() + mBitmapRightEdgeOffset; |
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} else { |
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rightPadding = mInitPaddingRight; |
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} |
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invalidate(); |
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setPadding(getPaddingLeft(), getPaddingTop(), rightPadding, getPaddingBottom()); |
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} |
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@NotNull |
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private TextWatcher newWatcher() { |
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return new TextWatcher() { |
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@Override |
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public void beforeTextChanged(CharSequence s, int start, int count, int after) { |
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} |
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@Override |
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public void afterTextChanged(Editable s) { |
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} |
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@Override |
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public void onTextChanged(CharSequence s, int start, int before, int count) { |
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adjustPadding(); |
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} |
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}; |
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} |
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@SuppressLint("ClickableViewAccessibility") |
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@Override |
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public boolean onTouchEvent(MotionEvent event) { |
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int action = event.getAction(); |
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if (action == MotionEvent.ACTION_DOWN) { |
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mDownPosition = detectTouchPosition(event); |
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} else if (action == MotionEvent.ACTION_UP) { |
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int upPosition = detectTouchPosition(event); |
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Timber.d("upPosition = %d", upPosition); |
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if (upPosition == mDownPosition) { |
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if ((upPosition == DOWN_POSITION_CLEAR)) { |
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setText(""); |
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} else if (upPosition == DOWN_POSITION_PASSWORD) { |
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if (isPasswordSeeable()) { |
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setTransformationMethod(null); |
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} else { |
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setTransformationMethod(getVisibleTransformation()); |
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} |
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} |
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} |
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} |
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return super.onTouchEvent(event); |
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} |
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private int detectTouchPosition(MotionEvent event) { |
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float eventX = event.getX(); |
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if (mPasswordVisibleEnable) { |
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int passwordRight = getMeasuredWidth() - mInitPaddingRight - mBitmapRightEdgeOffset; |
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int passwordLeft = passwordRight - getPasswordBitmap().getWidth(); |
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if (eventX >= passwordLeft && eventX <= passwordRight) { |
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return DOWN_POSITION_PASSWORD; |
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} |
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if (mContentClearableEnable && !TextUtils.isEmpty(getTextValue())) { |
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int clearRight = passwordLeft - mBitmapMargin; |
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int clearLeft = clearRight - mClearBitmap.getWidth(); |
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if (eventX >= clearLeft && eventX <= clearRight) { |
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return DOWN_POSITION_CLEAR; |
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} |
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} |
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} else if (mContentClearableEnable && !TextUtils.isEmpty(getTextValue())) { |
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int clearRight = getMeasuredWidth() - mInitPaddingRight - mBitmapRightEdgeOffset; |
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int clearLeft = clearRight - mClearBitmap.getWidth(); |
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if (eventX >= clearLeft && eventX <= clearRight) { |
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return DOWN_POSITION_CLEAR; |
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} |
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} |
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return DOWN_POSITION_NONE; |
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} |
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private String getTextValue() { |
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Editable text = getText(); |
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return (text == null) ? "" : text.toString(); |
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} |
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@Override |
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protected void onDraw(Canvas canvas) { |
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super.onDraw(canvas); |
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canvas.save(); |
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canvas.translate(getMeasuredWidth() - mInitPaddingRight, 0); |
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if (mPasswordVisibleEnable) { |
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Bitmap passwordBitmap = getPasswordBitmap(); |
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canvas.translate(-(passwordBitmap.getWidth() + mBitmapRightEdgeOffset), 0); |
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canvas.drawBitmap(passwordBitmap, 0, (getMeasuredHeight() - passwordBitmap.getHeight()) / 2, mBitmapPaint); |
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} |
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boolean hasClearBitmap = mContentClearableEnable && !TextUtils.isEmpty(getTextValue()); |
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if (hasClearBitmap) { |
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if (mPasswordVisibleEnable) { |
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canvas.translate(-(mClearBitmap.getWidth() + mBitmapMargin), 0); |
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} else { |
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canvas.translate(-(mClearBitmap.getWidth() + mBitmapRightEdgeOffset), 0); |
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} |
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canvas.drawBitmap(mClearBitmap, 0, (getMeasuredHeight() - mClearBitmap.getHeight()) / 2, mBitmapPaint); |
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} |
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canvas.restore(); |
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} |
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private boolean isInputTypePassword() { |
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int inputType = getInputType(); |
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final int variation = inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); |
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final boolean passwordInputType = variation == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD); |
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final boolean webPasswordInputType = variation == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD); |
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final boolean numberPasswordInputType = variation == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); |
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return passwordInputType || webPasswordInputType || numberPasswordInputType; |
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} |
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private boolean isPasswordSeeable() { |
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return getTransformationMethod() instanceof PasswordTransformationMethod; |
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} |
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public void setInitPaddingRight(int initPaddingRight) { |
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mInitPaddingRight = initPaddingRight; |
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adjustPadding(); |
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} |
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} |
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After Width: | Height: | Size: 506 B |
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After Width: | Height: | Size: 1.6 KiB |
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After Width: | Height: | Size: 2.4 KiB |
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