本来是测试自定义Toast，发现
implements View.OnClickListener的Onclick事件怎么都不响应，开始以为是自定义的问题。结果当然不是；需要clean项目就好了，AndroidStudio的问题还是很多~
@Override
public void onBackPressed() {
ToastUtils.cancelToast();
super.onBackPressed();
}在onBackPressed方法里面加上取消的代码可以增加用户体验。不会退出界面后还弹出toast
PS：只是一个思路，其实觉得用不上。默认的只有两种时间，退出app的时间间隔已经结束了
没找public class MainActivity extends AppCompatActivity implements View.OnClickListener, OnTouchListener {
Handler myHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
switch (msg.what) {
case 0x111:
// Toast.makeText(MainActivity.this, "11", Toast.LENGTH_SHORT).show();
// methodlow();
break;
}
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button viewById = (Button) findViewById(R.id.bt_toast);
Button button = (Button) findViewById(R.id.button);
viewById.setOnClickListener(MainActivity.this);
button.setOnClickListener(this);
@Overridepublic void onClick(View v) {
switch (v.getId()) {
case R.id.bt_toast:
// Toast.makeText(MainActivity.this, "bt_toast", Toast.LENGTH_SHORT).show();
ToastUtils.showToast(MainActivity.this, "点击测试");
break;
case R.id.button:
ToastUtils.showToast(MainActivity.this, "buttonclick");
break;
}
}
package com.tianch.test40.util;
import android.content.Context;
import android.widget.Toast;
/**
* Created by Administrator on 2016/7/28.10
*/
public class ToastUtils {
private static Toast toast;
public static void showToast(Context context,
String content) {
if (toast == null) {
toast = Toast.makeText(context,
content,
Toast.LENGTH_SHORT);
} else {
toast.setText(content);
}
toast.show();
}
public static void cancelToast() {
if (toast != null) {
toast.cancel();
}
}
}
)
