crosswalk使用--AlertDialog.Builder弹窗--返回键弹窗、prompt弹窗
1.遗留问题：弹出窗口关闭后整个屏幕亮度非常高，一段时间后才会恢复。
2.遇到的问题：使用 import android.support.v7.app.AlertDialog 弹窗就闪退。
| 返回键 |
通过重写dispatchKeyEvent函数修改返回键事件 package com.example.lyj.crosswalk;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.KeyEvent;
import org.xwalk.core.XWalkView;
public class MainActivity extends Activity{
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
AndroidBug5497Workaround.assistActivity(this);
XWalkView xWalkView = findViewById(R.id.web);
xWalkView.loadUrl("file:///android_asset/index.html");
}
@Override
public boolean dispatchKeyEvent(KeyEvent event) {
if (event.getKeyCode() == KeyEvent.KEYCODE_BACK
&& 0 == event.getRepeatCount()
&& event.getAction() == KeyEvent.ACTION_DOWN){
new AlertDialog.Builder(MainActivity.this)
.setTitle("退出确定")
.setMessage("是否确定退出？")
.setPositiveButton("确定退出", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
finish();
}
})
.setNegativeButton("取消退出", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
}
})
.create()
.show();
return false;
}
return super.dispatchKeyEvent(event);
}
}
|
prompt监听 |
重写onJsPrompt函数，自定义弹出窗口样式和内容
xWalkView.setUIClient(new XWalkUIClient(xWalkView){
@Override
public boolean onJsPrompt(XWalkView view, String url, String message, final String defaultValue, final XWalkJavascriptResult result) {
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
final EditText editText = new EditText(MainActivity.this);
Uri uri = Uri.parse(message);
editText.setText(defaultValue);
if(uri.getAuthority().equals("serverAddr")) {
builder.setTitle("请输入服务器地址").setView(editText);
} else if(uri.getAuthority().equals("operator")) {
builder.setTitle("请输入运营商信息").setView(editText);
} else {
builder.setTitle("error");
}
builder.setPositiveButton("输入确认", new DialogInterface.OnClickListener() {
@Override //确认键处理
public void onClick(DialogInterface dialogInterface, int i) {
result.confirmWithResult(editText.getText().toString());
}
});
builder.setNegativeButton("取消输入", new DialogInterface.OnClickListener() {
@Override //取消键处理
public void onClick(DialogInterface dialogInterface, int i) {
result.confirmWithResult(defaultValue);
}
});
builder.setOnKeyListener(new DialogInterface.OnKeyListener() {
@Override //返回键处理
public boolean onKey(DialogInterface dialogInterface, int i, KeyEvent keyEvent) {
if(KeyEvent.KEYCODE_BACK == i)
return true; //返回键拦截
return false; //其他键直接返回
}
});
builder.show();
return true;
}
});
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