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| 1 | +package com.rae.cnblogs.widget; |
| 2 | + |
| 3 | +import android.content.Context; |
| 4 | +import android.graphics.Color; |
| 5 | +import android.text.Spannable; |
| 6 | +import android.text.method.MovementMethod; |
| 7 | +import android.util.AttributeSet; |
| 8 | +import android.view.MotionEvent; |
| 9 | +import android.widget.TextView; |
| 10 | + |
| 11 | +import com.rae.cnblogs.widget.span.ISpanTouchFix; |
| 12 | +import com.rae.cnblogs.widget.span.QMUILinkTouchMovementMethod; |
| 13 | +import com.rae.cnblogs.widget.span.QMUITouchableSpan; |
| 14 | + |
| 15 | +/** |
| 16 | + * <p> |
| 17 | + * 修复了 {@link TextView} 与 {@link android.text.style.ClickableSpan} 一起使用时, |
| 18 | + * 点击 {@link android.text.style.ClickableSpan} 也会触发 {@link TextView} 的事件的问题。 |
| 19 | + * </p> |
| 20 | + * <p> |
| 21 | + * 同时通过 {@link #setNeedForceEventToParent(boolean)} 控制该 TextView 的点击事件能否传递给其 Parent, |
| 22 | + * 修复了 {@link TextView} 默认情况下如果添加了 {@link android.text.style.ClickableSpan} 之后就无法把点击事件传递给 {@link TextView} 的 Parent 的问题。 |
| 23 | + * </p> |
| 24 | + * <p> |
| 25 | + * 注意: 使用该 {@link TextView} 时, 用 {@link QMUITouchableSpan} 代替 {@link android.text.style.ClickableSpan}, |
| 26 | + * 且同时可以使用 {@link QMUITouchableSpan} 达到修改 span 的文字颜色和背景色的目的。 |
| 27 | + * </p> |
| 28 | + * <p> |
| 29 | + * 注意: 使用该 {@link TextView} 时, 需调用 {@link #setMovementMethodDefault()} 方法设置默认的 {@link QMUILinkTouchMovementMethod}, |
| 30 | + * TextView 会在 {@link #onTouchEvent(MotionEvent)} 时将事件传递给 {@link QMUILinkTouchMovementMethod}, |
| 31 | + * 然后传递给 {@link QMUITouchableSpan}, 实现点击态的变化和点击事件的响应。 |
| 32 | + * </p> |
| 33 | + * |
| 34 | + * @author cginechen |
| 35 | + * @date 2017-03-20 |
| 36 | + * @see QMUITouchableSpan |
| 37 | + * @see QMUILinkTouchMovementMethod |
| 38 | + */ |
| 39 | +public class QMUISpanTouchFixTextView extends RaeTextView implements ISpanTouchFix { |
| 40 | + /** |
| 41 | + * 记录当前 Touch 事件对应的点是不是点在了 span 上面 |
| 42 | + */ |
| 43 | + private boolean mTouchSpanHit; |
| 44 | + |
| 45 | + /** |
| 46 | + * 记录每次真正传入的press,每次更改mTouchSpanHint,需要再调用一次setPressed,确保press状态正确 |
| 47 | + */ |
| 48 | + private boolean mIsPressedRecord = false; |
| 49 | + /** |
| 50 | + * TextView是否应该消耗事件 |
| 51 | + */ |
| 52 | + private boolean mNeedForceEventToParent = false; |
| 53 | + |
| 54 | + public QMUISpanTouchFixTextView(Context context) { |
| 55 | + this(context, null); |
| 56 | + } |
| 57 | + |
| 58 | + public QMUISpanTouchFixTextView(Context context, AttributeSet attrs) { |
| 59 | + this(context, attrs, 0); |
| 60 | + } |
| 61 | + |
| 62 | + public QMUISpanTouchFixTextView(Context context, AttributeSet attrs, int defStyleAttr) { |
| 63 | + super(context, attrs, defStyleAttr); |
| 64 | + setHighlightColor(Color.TRANSPARENT); |
| 65 | + } |
| 66 | + |
| 67 | + public void setNeedForceEventToParent(boolean needForceEventToParent) { |
| 68 | + mNeedForceEventToParent = needForceEventToParent; |
| 69 | + setFocusable(!needForceEventToParent); |
| 70 | + setClickable(!needForceEventToParent); |
| 71 | + setLongClickable(!needForceEventToParent); |
| 72 | + } |
| 73 | + |
| 74 | + /** |
| 75 | + * 使用者主动调用 |
| 76 | + */ |
| 77 | + public void setMovementMethodDefault() { |
| 78 | + setMovementMethodCompat(QMUILinkTouchMovementMethod.getInstance()); |
| 79 | + } |
| 80 | + |
| 81 | + public void setMovementMethodCompat(MovementMethod movement) { |
| 82 | + setMovementMethod(movement); |
| 83 | + if (mNeedForceEventToParent) { |
| 84 | + setNeedForceEventToParent(true); |
| 85 | + } |
| 86 | + } |
| 87 | + |
| 88 | + @Override |
| 89 | + public boolean onTouchEvent(MotionEvent event) { |
| 90 | + if (!(getText() instanceof Spannable)) { |
| 91 | + return super.onTouchEvent(event); |
| 92 | + } |
| 93 | + mTouchSpanHit = true; |
| 94 | + // 调用super.onTouchEvent,会走到QMUILinkTouchMovementMethod |
| 95 | + // 会走到QMUILinkTouchMovementMethod#onTouchEvent会修改mTouchSpanHint |
| 96 | + boolean ret = super.onTouchEvent(event); |
| 97 | + if (mNeedForceEventToParent) { |
| 98 | + return mTouchSpanHit; |
| 99 | + } |
| 100 | + return ret; |
| 101 | + } |
| 102 | + |
| 103 | + @Override |
| 104 | + public void setTouchSpanHit(boolean hit) { |
| 105 | + if (mTouchSpanHit != hit) { |
| 106 | + mTouchSpanHit = hit; |
| 107 | + setPressed(mIsPressedRecord); |
| 108 | + } |
| 109 | + } |
| 110 | + |
| 111 | + @SuppressWarnings("SimplifiableIfStatement") |
| 112 | + @Override |
| 113 | + public boolean performClick() { |
| 114 | + if (!mTouchSpanHit && !mNeedForceEventToParent) { |
| 115 | + return super.performClick(); |
| 116 | + } |
| 117 | + return false; |
| 118 | + } |
| 119 | + |
| 120 | + @SuppressWarnings("SimplifiableIfStatement") |
| 121 | + @Override |
| 122 | + public boolean performLongClick() { |
| 123 | + if (!mTouchSpanHit && !mNeedForceEventToParent) { |
| 124 | + return super.performLongClick(); |
| 125 | + } |
| 126 | + return false; |
| 127 | + } |
| 128 | + |
| 129 | + @Override |
| 130 | + public final void setPressed(boolean pressed) { |
| 131 | + mIsPressedRecord = pressed; |
| 132 | + if (!mTouchSpanHit) { |
| 133 | + onSetPressed(pressed); |
| 134 | + } |
| 135 | + } |
| 136 | + |
| 137 | + protected void onSetPressed(boolean pressed) { |
| 138 | + super.setPressed(pressed); |
| 139 | + } |
| 140 | +} |
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