package cn.qqtheme.framework.popup;
import android.app.Activity;
import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.support.annotation.CallSuper;
import android.support.annotation.StyleRes;
import android.util.DisplayMetrics;
import android.view.Gravity;
import android.view.KeyEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.widget.FrameLayout;
import cn.qqtheme.framework.util.LogUtils;
import cn.qqtheme.framework.util.ScreenUtils;
/**
* 弹窗基类
*
* @param <V> 弹窗的内容视图类型
* @author 李玉江[QQ:1023694760]
* @since 2015/7/19
*/
public abstract class BasicPopup<V extends View> implements DialogInterface.OnKeyListener,
DialogInterface.OnDismissListener {
public static final int MATCH_PARENT = ViewGroup.LayoutParams.MATCH_PARENT;
public static final int WRAP_CONTENT = ViewGroup.LayoutParams.WRAP_CONTENT;
protected Activity activity;
protected int screenWidthPixels;
protected int screenHeightPixels;
private Dialog dialog;
private FrameLayout contentLayout;
private boolean isPrepared = false;
public BasicPopup(Activity activity) {
this.activity = activity;
DisplayMetrics metrics = ScreenUtils.displayMetrics(activity);
screenWidthPixels = metrics.widthPixels;
screenHeightPixels = metrics.heightPixels;
initDialog();
}
private void initDialog() {
contentLayout = new FrameLayout(activity);
contentLayout.setLayoutParams(new ViewGroup.LayoutParams(WRAP_CONTENT, WRAP_CONTENT));
contentLayout.setFocusable(true);
contentLayout.setFocusableInTouchMode(true);
dialog = new Dialog(activity);
dialog.setCanceledOnTouchOutside(true);//触摸屏幕取消窗体
dialog.setCancelable(true);//按返回键取消窗体
dialog.setOnKeyListener(this);
dialog.setOnDismissListener(this);
Window window = dialog.getWindow();
if (window != null) {
window.setGravity(Gravity.BOTTOM);
window.setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
//AndroidRuntimeException: requestFeature() must be called before adding content
window.requestFeature(Window.FEATURE_NO_TITLE);
window.setContentView(contentLayout);
}
setSize(screenWidthPixels, WRAP_CONTENT);
}
public int getScreenWidthPixels() {
return screenWidthPixels;
}
public int getScreenHeightPixels() {
return screenHeightPixels;
}
/**
* 创建弹窗的内容视图
*
* @return the view
*/
protected abstract V makeContentView();
/**
* 固定高度为屏幕的高
*
* @param fillScreen true为全屏
*/
public void setFillScreen(boolean fillScreen) {
if (fillScreen) {
setSize(screenWidthPixels, (int) (screenHeightPixels * 0.85f));
}
}
/**
* 固定高度为屏幕的一半
*
* @param halfScreen true为半屏
*/
public void setHalfScreen(boolean halfScreen) {
if (halfScreen) {
setSize(screenWidthPixels, screenHeightPixels / 2);
}
}
/**
* 位于屏幕何处
*
* @see Gravity
*/
public void setGravity(int gravity) {
Window window = dialog.getWindow();
if (window != null) {
window.setGravity(gravity);
}
if (gravity == Gravity.CENTER) {
//居于屏幕正中间时，宽度不允许填充屏幕
setWidth((int) (screenWidthPixels * 0.7f));
}
}
/**
* 设置弹窗的内容视图之前执行
*/
protected void setContentViewBefore() {
}
/**
* 设置弹窗的内容视图之后执行
*
* @param contentView 弹窗的内容视图
*/
protected void setContentViewAfter(V contentView) {
}
public void setContentView(View view) {
contentLayout.removeAllViews();
contentLayout.addView(view);
}
public void setFitsSystemWindows(boolean flag) {
contentLayout.setFitsSystemWindows(flag);
}
public void setAnimationStyle(@StyleRes int animRes) {
Window window = dialog.getWindow();
if (window != null) {
window.setWindowAnimations(animRes);
}
}
public void setCanceledOnTouchOutside(boolean flag) {
dialog.setCanceledOnTouchOutside(flag);
}
public void setCancelable(boolean flag) {
dialog.setCancelable(flag);
}
public void setOnDismissListener(final DialogInterface.OnDismissListener onDismissListener) {
dialog.setOnDismissListener(new DialogInterface.OnDismissListener() {
@Override
public void onDismiss(DialogInterface dialog) {
BasicPopup.this.onDismiss(dialog);
onDismissListener.onDismiss(dialog);
}
});
LogUtils.verbose(this, "popup setOnDismissListener");
}
public void setOnKeyListener(final DialogInterface.OnKeyListener onKeyListener) {
dialog.setOnKeyListener(new DialogInterface.OnKeyListener() {
@Override
public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event) {
BasicPopup.this.onKey(dialog, keyCode, event);
return onKeyListener.onKey(dialog, keyCode, event);
}
});
LogUtils.verbose(this, "popup setOnKeyListener");
}
/**
* 设置弹窗的宽和高
*
* @param width 宽
* @param height 高
*/
public void setSize(int width, int height) {
if (width == MATCH_PARENT) {
//360奇酷等手机对话框MATCH_PARENT时两边还会有边距，故强制填充屏幕宽
width = screenWidthPixels;
}
if (width == 0 && height == 0) {
width = screenWidthPixels;
height = WRAP_CONTENT;
} else if (width == 0) {
width = screenWidthPixels;
} else if (height == 0) {
height = WRAP_CONTENT;
}
LogUtils.verbose(this, String.format("will set popup width/height to: %s/%s", width, height));
ViewGroup.LayoutParams params = contentLayout.getLayoutParams();
if (params == null) {
params = new ViewGroup.LayoutParams(width, height);
} else {
params.width = width;
params.height = height;
}
contentLayout.setLayoutParams(params);
}
/**
* 设置弹窗的宽
*
* @param width 宽
* @see #setSize(int, int)
*/
public void setWidth(int width) {
setSize(width, 0);
}
/**
* 设置弹窗的高
*
* @param height 高
* @see #setSize(int, int)
*/
public void setHeight(int height) {
setSize(0, height);
}
/**
* 设置是否需要重新初始化视图，可用于数据刷新
*/
public void setPrepared(boolean prepared) {
isPrepared = prepared;
}
public boolean isShowing() {
return dialog.isShowing();
}
public final void show() {
if (isPrepared) {
dialog.show();
showAfter();
return;
}
LogUtils.verbose(this, "do something before popup show");
setContentViewBefore();
V view = makeContentView();
setContentView(view);// 设置弹出窗体的布局
setContentViewAfter(view);
isPrepared = true;
dialog.show();
showAfter();
}
protected void showAfter() {
LogUtils.verbose(this, "popup show");
}
public void dismiss() {
dismissImmediately();
}
protected final void dismissImmediately() {
dialog.dismiss();
LogUtils.verbose(this, "popup dismiss");
}
public boolean onBackPress() {
dismiss();
return false;
}
@Override
public final boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event) {
if (event.getAction() == KeyEvent.ACTION_DOWN && keyCode == KeyEvent.KEYCODE_BACK) {
onBackPress();
}
return false;
}
@Override
public void onDismiss(DialogInterface dialog) {
dismiss();
}
public Context getContext() {
return dialog.getContext();
}
public Window getWindow() {
return dialog.getWindow();
}
/**
* 弹框的内容视图
*/
public View getContentView() {
// IllegalStateException: The specified child already has a parent.
// You must call removeView() on the child's parent first.
return contentLayout.getChildAt(0);
}
/**
* 弹框的根视图
*/
public ViewGroup getRootView() {
return contentLayout;
}
}