您好我最近问了一个关于我的应用程序的问题,这里的好人发现它会强制关闭,因为我的图像没有正确处理位图工厂,但作为业余爱好者我决定拿出图像以确保我的代码很好....而且它不是
我想要的是打开第二个活动的主要内容,它列出了4个按钮,其中最重要的一个按钮带你太过于狂热
我所拥有的是主要的跳过第二次活动并且带你太过于暴力,如果你按下它会带你太活跃但是这里的按钮什么都不做
但我的代码中没有错误,应用程序永远不会强制关闭,所以我只是发布代码或logcat吗?
任何帮助表示赞赏
main.java
package com.example.myapplication;
import android.content.Intent;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
public class main extends Activity {
Button ok;
EditText name;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
name=(EditText)findViewById(R.id.editText);
ok=(Button)findViewById(R.id.button);
ok.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
String nameStr = name.getText().toString();
Intent intent = new Intent(getApplicationContext(), secondactivity.class);
intent.putExtra("NAMEDATA",nameStr);
startActivity(intent);
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
secondactivity.java
package com.example.myapplication;
import android.content.Intent;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.Button;
import android.widget.TextView;
public class secondactivity extends Activity {
TextView t;
Button button;
Button button2;
Button button3;
Button button4;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_second);
t = (TextView)findViewById(R.id.textView3);
String n = this.getIntent().getStringExtra("NAMEDATA");
t.setText(n);
button = (Button)findViewById(R.id.button);
button2 = (Button)findViewById(R.id.button2);
button3 = (Button)findViewById(R.id.button3);
button4 = (Button)findViewById(R.id.button4);
setButtonOnClickListener();
}
private void setButtonOnClickListener(){
Intent intent = new Intent(secondactivity.this, bathactivity.class);
startActivity(intent);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.second, menu);
return true;
}
}
bathactivity.java
package com.example.myapplication;
import android.os.Bundle;
import android.app.Activity;
import android.widget.Button;
public class bathactivity extends Activity {
Button button;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_bath);
button = (Button)findViewById(R.id.nextbutton);
}
}
答案 0 :(得分:0)
您的secondactivity
根本没有被跳过。它被调用,从Activity Lifecycle开始onCreate()
。在onCreate()
内,您拨打setButtonOnClickListener()
,其中Intent
会将您转到bathactivity
。因此,虽然secondactivity
被调用,但您没有看到它,因为您立即转到下一个Activity
。
在secondactivity
button = (Button)findViewById(R.id.button);
button2 = (Button)findViewById(R.id.button2);
button3 = (Button)findViewById(R.id.button3);
button4 = (Button)findViewById(R.id.button4);
setButtonOnClickListener();
}
private void setButtonOnClickListener(){
Intent intent = new Intent(secondactivity.this, bathactivity.class);
startActivity(intent);
}
类似
button = (Button)findViewById(R.id.button);
button2 = (Button)findViewById(R.id.button2);
button3 = (Button)findViewById(R.id.button3);
button4 = (Button)findViewById(R.id.button4);
button.setOnClickListener(new OnClickListener() /* this is one of several ways to set the
* OnClickListener which you are not doing
*/
{
@Override
public void onClick(View v)
{
Intent intent = new Intent(secondactivity.this, bathactivity.class);
startActivity(intent); // this will start your Activity when clicking the Button
}
});
它应该给你你想要的东西。
答案 1 :(得分:0)
当然,它会直接带你到bathactivity
。你问了。在onCreate
的{{1}}内,您正在调用此secondactivity
函数,该函数会创建setButtonOnClickListener();
并启动Intent
。不要在bathactivity
内调用该函数。只需在XML文件中直接使用它,在onCreate
中,您只需定义按钮的函数名称即可。